convoport
DeepSeek Harness plugin: auto-capture your DeepSeek web conversations, store them 100% locally, import selected messages into workspace sessions, and see how many tokens you've saved.
What it does
| Capability | Description |
|---|---|
| Auto-capture | Companion MV3 browser extension watches chat.deepseek.com, pulls conversations via the official history_messages API, and syncs them to this plugin automatically. |
| Local storage | Data lives in $DSH_HOME/capture/ (JSON, one file per conversation + index.json). Zero upload — and it's plain JSON, readable by any developer. |
| Token savings stats | Cumulative tokens saved / conversation count / today's captures / estimated savings (with the counting method stated on the page). |
| Message-level import | Don't import whole conversations — open a capture, check individual messages (quick-select "first 3 / last 3"), then import = create a new Harness session in the current workspace with those messages as its history. Continue chatting from there. |
Architecture
Browser extension (MV3) dsh plugin (this repo)
┌──────────────────────┐ POST ┌──────────────────────────────┐
│ content script │ ────────▶ │ lib/index.js server half │
│ · chat.deepseek.com │ /capture │ · /capture/ingest ingest │
│ · official API pull │ │ · /capture/sessions list │
│ · batched reporting │ │ · /capture/messages detail │
└──────────────────────┘ │ · /capture/stats stats │
│ · /capture/import new sess │
│ lib/client.js Web sidebar │
│ sidebar.footer.action slot │
└──────────────────────────────┘Install
# 1. Install the plugin
dsh plugin --profile web add convoport
# Restart dsh web, refresh the browser.
# 2. Load the browser extension (extension/ ships inside the npm package;
# also available from this repo)
# Path: node_modules/convoport/extension/ (or repo extension/)
# chrome://extensions → enable Developer mode → Load unpacked → pick extension/
# Optional: click the extension icon → Options → confirm the backend URL
# is http://127.0.0.1:3080 (the dsh web port).Note: Chrome deliberately blocks command-line loading of unpacked extensions;
the manual "Load unpacked" step above is required (it's the standard flow).
Usage
- With the extension enabled, just chat on
chat.deepseek.com— the extension syncs automatically. - A "⛁ Convoport" button appears at the bottom of the Web sidebar:
- Stat cards: total tokens saved / conversations / today's captures / estimated savings
- Capture list: title, message count, tokens, import status
- Click a conversation → message-level picker: check the messages you want (quick-select "first 3 / last 3 / all / clear").
- Click "Import selected → new session (N)" — a new session appears in the sidebar; its history is exactly the messages you picked. Continue chatting there.
A /capture command also shows the stats overview right in the chat.
API
| Method | Path | Description |
|---|---|---|
| POST | /capture/ingest |
Extension reports a conversation {source,url,title,captured_at,messages[]}; idempotent merge by url, dedup by message_id |
| GET | /capture/sessions |
Capture asset list (with import status) |
| GET | /capture/messages?id= |
Full messages of one capture |
| GET | /capture/stats |
Stats |
| GET | /capture/search?q= |
Full-text search (SQLite FTS5 + LIKE fallback) |
| POST | /capture/import |
{id, indexes[]} → create a new Harness session, returns sessionId |
| DELETE | /capture/sessions?id= |
Delete a capture |
Token accounting
- Prefers DeepSeek's official
accumulated_token_count(the extension writes per-messagetoken_count). - Falls back to the Harness-style heuristic: 4 chars/token + structural overhead (same as
dsh-token-meter). - The stats page/command output always states the method; estimated savings use a
$0.02 / 1k tokensreference price.
Development
# Local development (link install):
# in your profile's package.json dependencies, add:
# "convoport": "link:<path-to-this-repo>"
# then run:
dsh plugin --profile web add convoport # triggers reconcileServer-side changes (lib/index.js) require restarting dsh web; client-side
(lib/client.js) is read live without cache — just refresh the browser.
Tests
npm test # all suites except extension-e2e
npm run test:e2e # extension→plugin full chain (needs dsh web running)
npm run pack:check # inspect what npm pack would publish